baber/WOPTO huggingface dataset:
Patent DE-2150837-A1 (DE)
Title: Press roll pair - for dewatering cellulose etc
Inventor: HEISSENBERGER OTTO ING
IPC: B30B9/20
Filed: 1971-10-12
Abstract: Press roll pair is connected downstream of a dewatering press in which cellulose or other fibrous material supported on a sieve or between two sieves is passed between horizontally supported roll pairs. At least one roll of the press roll pair is provided with continuous grooves running from one end of the roll to the other and inclined to the roll surface generator. In particular the grooves intersect each other.
Patent DE-2153469-A1 (DE)
Title: Cold pressure welded contact blocks - having a rivet shape
Inventor: BLUM RICHARD
IPC: B23K20/02
Filed: 1971-10-27
Abstract: Fixing of a contact block by cold pressure welding to a base comprises the use of a Cu rivet shaped contact block the stem of which is inserted into the through bore of an Al-carrier on a solid base. To the head of the rivet is then applied a W-cross section ring punch, which deforms and presses the rivet head partially into the carrier surface and causes the rivet stem to spread out against the wall of the bore of the carrier. The cold welding effected yields a clean joint with little or no O-interface films resulting from thermal soldering methods.
Patent DE-2166936-A1 (DE)
Title: Automatic control of original speed through photocopier - by measuring translucency of successive originals and delaying resulting signal
Inventor: DENNHARDT WERNER
IPC: G03B27/80
Filed: 1971-04-22
Abstract: The speed of a motor used to pass originals and copying material through the exposure zone of a copying machine is automatically controlled by deriving a speed-determining signal for each original while a preceding original is still in the exposure zone (e.g. by measuring the translucency of each original) storing each such signal until the preceding original has left the exposure zone, and then using the signal to control the motor speed as the origonal passes through the exposure zone and cancelling it from the store e.g. discharging a storage capacitor. For each original the control signal stored by a capacitor preferably comprises the signal from an array of photocells representing the greatest translucency of the original.
Patent DE-2208307-A1 (DE)
Title: Heat-insulated casing prodn - using composite material esp for ice-chests, etc
Inventor: REININGER FRITZ
Filed: 1972-02-22
Abstract: Each wall of the casing has a core or rigid material, pref. plates of plastic assembled to form a box, e.g. by sticking and then placed within an injection mould tool leaving a gap of 5 - 10 mm. into which foaming plastics mixt. is injected. The foaming press. and the mould tool wall temp. are such that when the plastics foam has hardened to form an outer layer on the core, its outer skin is sealed to a depth of 0.5 - 2 mm. Cable ways, cold air ducts, fixing rails, fasteners etc., for lids, doors can be moulded integrally into the plastics foam layer(s).
Patent DE-2213904-A1 (DE)
Title: Accelerating microorganism culture - using oxygen activated by exposure to magnetic field
Inventor: VARGA ANDREAS DIPL ING
IPC: C12N13/00
Filed: 1972-03-22
Abstract: Pref. the oxygen is exposed intermittently for periods of 0.5-5 secs. using an AC or DC magnetic field of 50-100 Gauss and the process can be used to accelerate and increase the growth of microorganism in a liq. nutrient medium. Alternatively, the process can be used to increase the partial oxygen press. in human blood circulation by activating aspirated air.
Patent DE-2215913-A1 (DE)
Title: Plastics carrier bag convertable into disposable refuse sack - to avoid wasteful discarding of an empty but still usable carrier bag
Inventor: BREMER KURT
IPC: B65D33/08
Filed: 1972-04-01
Abstract: A thermoplastics carrier bag features a 'pocket' portion comprising a refuse sack folded about transverse axis. The superposed foils forming the sack are, each, provided with a welding seam, extending at a certain distance from their lower and lateral edges, and have cuts arranged symmetrically with the transverse axis, serving as handles. The superposed foils of th refuse sck ar bonded together on that side having the cuts serving as handles. Conversion of the carrier bag into a refuse sack enables the article to be disposed of in a useful fashion rather than discarding it wastefully whilst it is still in a serviceable condition.
Patent DE-2303043-A1 (DE)
Title: Ceramic tunnel dryer - with intermediate workpiece tray storage elevators in front and behind dryer
Inventor: WOLF HEINZ ING
IPC: F26B25/00
Filed: 1973-01-23
Abstract: Installation for mass prodn ceramic components comprises roller or belt conveyors between the prodn. stations and the tunnel dryers, with in front of the dryers, storage elevators for placing filled trays both on top of each other and side by side for inter. storage. Similar elevators are provided at the dryer outlet. The installation comprises sensors which ensure that the elevators are working only when full trays are being conveyed to the dryer. The system ensures evening out of the workpiece flow so that interruption in prodn do not disrupt workpiece flow through the dryer which in such a case is fed with stored components.
Patent DE-2304858-A1 (DE)
Title: Flexible bag - with opening closed by beading parts placed one within the other
Inventor: TOSS FRANCO
IPC: B65B9/20
Filed: 1973-02-01
Abstract: Plastic bag with an opening closed by a closure beading is produced from a flexible tube of weldable sheet with a folding place parallel to the longitudinal axis of the tube, and closure beading halves by (a) opening the flexible tube by sepg the closure beading, (b) spreading out in the form of a flat film, (c) passing over a shaping shoulder, (d) guiding the edges of the flat sheet towards each other, (e) effecting clossure, and (f) sepg the individual bags from each other by means of welded joints, perpendicular to the opening.
Patent DE-2313470-A1 (DE)
Title: Stainless nickel-chromium steels - for sand casting at low temps.
Inventor: JONES ROBIN MACKAY FORBES
IPC: C22C38/54
Filed: 1973-03-17
Abstract: The steel compsn. of the parent patent, comprising 6-30% Ni, 14-26% Cr, 2-5% Si, up to 0.15%C, 0-3% Cu, 0-8% Mo, 0-1.4%P, 0-1% Nb, bal. Fe is modified by adjusting the B content to 0.2-1.4% (previously 0.3-1.4%), the Mn content to 0.1-5% Mn (previously 0-20%) and the value of 8(Ni% + Mn%) - 1.5 (Cr% + Mo%) + 22(Si%) + 284(B%) + 189(P%) to 180-360 (previously >=360). Pref. compsn. is 8-14% Ni, 16-20% Cr, 2.5-3.5% Si, 0.25-0.55% B, up to 0.15% C, 0.2-2.5% Mn, 0-4% Mo, 0-2% Cu, bal. Fe. The modified steels can be cast at as low as 1454 degrees C in green sand moulds without entrapped films, flaws or cold shuts.
Patent DE-2322289-A1 (DE)
Title: 3,4,9,10-Anthanthronetetracarboxylic acid and its anhydride - prepd. by oxidn and ring closure of a di-acenaphthene deriv
Inventor: DOKUNICHIN NIKOLAJ STEPANOWITS
IPC: C09B3/64
Filed: 1973-05-03
Abstract: Title cpds. combine the anthanthrone structure with peri-substd. carboxylic acid gps. both of these features being of interest in dye chemistry. The acid (I) is prepd. by oxidn. (with e.g. KMnO4, CrO3, or Nacl at normal pressure and opt. at room temp) of cpds. of general formula (II) (X is-COOH or -COCH3) followed by cyclisation of the prod. at normal pressure and at room temp. or 60-80 degrees with e.g. H2SO4 oleum, POCl3 or ClSO3H. The acid (I) is a pale brown powder which is not melted at 360 degrees and yields the corresp. anhydride on heating to 160 degrees. Useful dyestuffs are obtd. by reaction the leuco-cpd. obtd. on reduction of I (with hydrosulphite) with various amino-cpds.
Patent DE-2332879-A1 (DE)
Title: Cycloaliphatic diketones for resin mfr. - prepd. by heating cyclic enol ethers
Inventor: TRESPER ERHARD DIPL CHEM DR
IPC: C07C49/683
Filed: 1973-06-28
Abstract: Title cpds., of formula II, are prepd. by heating cyclic enol ethers of formula I at 100-350, pref. 160-300 degrees. R1-3 are independently different =6 alkyl, or H; R4 is H, (cyclo)-alkyl or aryl and n is 2-9, pref. 2-5. The reaction may be carried out in the presence of a solvent or diluent, for which purpose a wide variety of liqs. can be used. The reaction time varies from a few min. to 48 hr., depening on conditions, including the scale of the operation. The prods. can be reacted with HCHO to give resins which on curing give a colourless, highly-reflecting layer of good conforming and adhesion properties on metal surfaces.
Patent DE-2335161-A1 (DE)
Title: Rowing apparatus for physical training - opposing force produced by brake bands and drums
Inventor: KETTLER HEINZ
IPC: A63B69/06
Filed: 1973-07-11
Abstract: The apparatus has to hand-operated levers. When these swing towards the body, the brake bands are pressed against the drums and when the levers swing away from the body, the bands rise from the drums. The apparatus operates silently and the brake mechanism can be adjusted by a setscrew.
Patent DE-2341969-A1 (DE)
Title: Slitting webs or foils into strips - using concd ir beams to produce clean cut edges
Inventor: FUCHS HELMUT DR-ING
IPC: D06H7/22
Filed: 1973-08-20
Abstract: Thin webs of plastics foils are slit into strips having clean edges using an IR heating element extending transversely of the web and enclosed by a parabolic mirror below which are arranged spaced focusing bars extending parallel to the web and collecting the IR rays into bundles which are oriented in the centre of the thickness of the web.
Patent DE-2342493-A1 (DE)
Title: Gearwheel drive rattle noise reduction - uses disturbance eliminator ring with high mass inertia mounted on shaft and coupled to gearwheels
Inventor: BLUMENSTEIN FRITZ
IPC: F16H57/00
Filed: 1973-08-23
Abstract: Device for the reduction of rattle noise in gearwheel drives, particularly in change gears and vehicles, in which at least one disturbance eliminator ring, with high mass inertia is fitted to a part of the gear wheels fitted with play on the gear shafts. This ring is movable located on the shaft and is coupled to the gear wheels with maintenance of a certain clearance in a tangential direction. The disturbance eliminator ring has a recess on its side facing its corresponding gearwheel, in which a gearwheel connecting pin engages. It possible to have a common disturbance eliminator ring fitted for two neighbouring gear wheels on a shaft, where again by maintenance of a determined clearance in a tangential direction it is coupled both to the one and the other rings.
Patent DE-2343662-A1 (DE)
Title: Hydraulic control device with auxiliary and main control valves - has valve held in neutral position by spring
Inventor: WALTER HEINZ
IPC: F15B13/04
Filed: 1973-08-30
Abstract: The arrangement consists of an advance control valve actuating the main control valve which has control slide held in neutral position by a spring, which according to the input signal from the advance control valve deviates proportionally the main valve in either direction and feeds hydraulic fluid from a supply line to an output line, or opt. to a return line. The arrangement is suitable for controlling stroke and travel velocity of asymmetrical power appliances with differential pistons. The arrangement forms a hydraulic servo, combining the function of proportional control and rapid operation control in one element. With specified connection of inlet and outlet ports rapid operation may be attained. The advance control valve may be in the form of an electro-hydraulic transducer.
Patent DE-2343821-A1 (DE)
Title: Thermo-generator with thin walled cylindrical elements - and simplified construction and assembly features
Inventor: FALKENBERG DIETER
IPC: G21H1/10
Filed: 1973-08-30
Abstract: Thermo-generator in which the alternating 'p' and 'n' elements are formed as thin walled hollow cylinders mounted on opposing faces of the central flange of the containment of a radio-active heat source to form the hot zone of the assembly. The extreme ends of each of the elements form cold zones in insulated connection with an inner bridge piece and top flange respectively. The hollow cylindrical elements and the annular interspace between the elements and the primary containment are insulated and enclosed by the secondary outer containment with the whole assembly evacuated and sealed and with the electrical conductor fed through a vacuum tight gland.
Patent DE-2352226-A1 (DE)
Title: Generator cct. for charging motor vehicle battery - has additional excitation winding tapping coupled to phase windings star centre
Inventor: RAGALY ISTVAN DIPL-ING
IPC: H02J7/16
Filed: 1973-10-18
Abstract: The generator circuit for charging a motor vehicle battery has an additional excitation winding with a tapping which is connected to the centre point of the star-coupled phase windings. The ends of the additional excitation winding are connected over diodes to opposite poles of the battery, i.e. to the generator output terminals. This circuit improves the generator efficiency and power, and gives reliable operation. Passing the load current through the additional excitation winding raises the excitation power and makes the increase in power possible. Alternatively the tapping may be omitted and two further diodes may connect the star centre point to the additional winding ends.
Patent DE-2362042-A1 (DE)
Title: Extruded plastics material cooled in compact chamber - by water then air in two compartments with transfer device between them
Inventor: RUETTEN WERNER
IPC: B29D99/00
Filed: 1973-12-13
Abstract: A cooling machine for extruded material, such as rubber awaiting vulcanisation or plastics, comprises a cooling chamber contg. a liq. spray unit, a reeling unit for coiling up the extruded material and a feed duct, through which the extruded material enters the cooling chamber and which is fitted near its inlet end with a liq. inlet. Pref. the portion of the chamber contg. the liq. spray comprises a sump, from which the liq. is recycled by a pump through a cooler to the liq. inlet. In a second compartment of the cooling chamber, a cooling air blower is pref. mounted, while a transporting unit transfers the coiled material from the first cooling chamber to the second, air-cooling chamber. Chamber is extremely compact in view of the long length of cooling necessary.
Patent DE-2363576-A1 (DE)
Title: Hollow moulded, resin-impregnated lignocellulose bodies - by converting fibres into granules, disintegrating granules in mould
IPC: B27N5/00
Filed: 1973-12-20
Abstract: Moulded bodies are produced from lignocellulose, esp. wood fibres impregnated with small amts. of natural and/or synthetic binders by (a) preconsolidating the fibrous matl. into a granulate that can be poured and shaken, (b) introducing the granulate into a mould in uniform distribution, (c) disintegrating the granulate in the mould into its original fibrous structure, and nd) compressing the fibrous matl. in the mould with a male die, whilst activating the binder. Process enables mouldings with relatively complicated shapes, and steep walls, e.g., coffins, to be produced, without weakening the individual zones by flowing and drawing of the fibrous matl. The granulate is easily introduced into the mould, and gives prodts. with a uniform wall strength.
Patent DE-2364574-A1 (DE)
Title: Variable focus lens with ring and pin mechanism - is designed so that rings cannot be locked accidentally
Inventor: REINSCH HERBERT
IPC: G02B7/105
Filed: 1973-12-24
Abstract: The variable focus mechanism employs a slot in the lens barrel and a pin on the lens holder which engages in the slot. The pin is connected to a manually operated control ring, and a further control ring has a curved slot which moves the pin into an extension of the barrel slot for close-up focus adjustment when the first control ring is in a given position. In this position, which is defined by a stop, the pin is still in the barrel slot, and the second control ring has a dog which moves the pin into the barrel slot extension when this control ring is rotated.
Patent DE-2402144-A1 (DE)
Title: Locking clasp for metal watch straps - has two interfitting frames with protrusion preventing accidental unlocking
Inventor: SOLOMON MARCEL
IPC: A44C5/20
Filed: 1974-01-17
Abstract: The lock comprises a lock frame and a slide-in frame which are designed to fit within each other and move relative to one other within a limited distance. The lock also comprises a special lock member so that whilst one part of the strap is fastened to the slide-in frame the other part contains the special lock member and is adapted to slide into an opening of that frame. One of the bores of the special locking member is inserted into a protrusion of the locking frame and passes between a crosspiece of the slide-in frame and the rear part of the locking frame so that the latter is prevented from moving relative to the slide-in frame since the protrusion abuts the edge of the slide-in frame.
Patent DE-2402801-A1 (DE)
Title: Hearing aid transistor amplifier - has a monolithic integrated circuit differential amplifier with AGC
Inventor: URBANSKI WILFRIED DIPL ING
IPC: H03G1/00
Filed: 1974-01-22
Abstract: The amplifier forward slope is adjustable, and a control voltage, which is a function of the signal voltage behind the amplifier, is applied to its control input. The amplifier has two transistors with positive feed-back and with joined together emitters. A controllable current generator is in the common emitter connection, and a transistor output stage. Collectors of the above two transistors are each connected to an intermediate transistors base. The collector of one intermediate transistor is connected to the base of a first output transistor, and the collector of the other through a phase inverting transistor to the base of a second output transistor of opposite conduction type. Collectors of the two output transistors are joined together, and form the amplifier output.
Patent DE-2418458-A1 (DE)
Title: Fast release clamping bracket for conveyor seal strip - has tapered clamp washer with bridging lug
Inventor: SCHMITZ FRIEDHELM
IPC: B65G21/20
Filed: 1974-04-17
Abstract: Conveyor belts which carry granulated or powder bulk are equipped with vertical guide plates. Vertical rubber strips which are held by clamping brackets act as seal between the horizontal belt surface and the vertical guide plates. The clamping bracket consists of an angled plate which is carried by a fixed screw bolt and nuts. A semi circular washer between nuts and bracket plate acts as clamping wedge when it is rotated. The washer has an axially protruding lug which enables the clamping and unclamping to be done with hammer blows. In this way, seal adjustment can be done rapidly in a trouble free manner.
Patent DE-2426703-A1 (DE)
Title: Injection moulding machine with two pressure stages - has stepped diameter piston giving large volume high final pressure
Inventor: OLEFF WERNER
IPC: B29C45/50
Filed: 1974-06-01
Abstract: A piston or ram unit for an injection moulding machine possesses a piston steeped down in its dia. at the forward end, with a corresponding step at the front of the barrel. When the small dia. part of the piston enters the corresponding part of the barrel, the annulus of material trapped ahead of the step of the piston escapes via a pressure-relieving device, esp. a sliding seal with grooves on its rear faced, mounted further back on the piston. The unit is used in moulding machines for thermoplastics, duroplastics and liquid metals. The larger cross-section of the piston face is active during the first part of the stroke, thus providing a large swept volume, whereas the smaller cross-section provides a higher final pressure and holding pressure during shrinkage of the material in the mould.
Patent DE-2437794-A1 (DE)
Title: Tyre for rimless wheel - with enclosed shape and single insert ring to hold tyre in wheel groove
Inventor: TIEMANN REINHARD DIPL ING
IPC: B60C3/02
Filed: 1974-08-06
Abstract: The tyre comprises an enclosed profile with a single insert ring (8) of metal wire or similar strong material. The outer tread is thickened to provide a running surface (6) while reinforcing insert layers (7) are arranged around the profile. The wheel rim is replaced by a flat bed system, made in two halves to bolt together and enclosing a shallow groove (9) between them. The insert ring fits into the shallow groove to secure the tyre. When deflated the tyre is easily fitted over the flat bed wheel. When inflated the ring is pushed into the groove to stabilise the system. The design enables the full depth of the tyre to be used for springing, thus giving a more comfortable ride.
Patent DE-2440921-A1 (DE)
Title: Electron beams focussed esp. to initiate fusion reaction - by pressure produced by focussed pulsed laser beam
Inventor: WINTERBERG FRIEDWART PROF DR
IPC: H05H1/22
Filed: 1974-08-27
Abstract: A method of focussing intense relativistic electron beams consists of using beams, esp. laser beams, to exert a transverse pressure on the electron beam. Pref., one or more pulsed laser beams propagating in a plasma, are focussed to a hollow conical shape around the electron beams. The plasma in which focussing of the laser beam takes place is pref. of light to heavy elements or a combination of same, selected to give maximum focussing with minimum energy loss from the electron beam. Esp. for initiating thermonuclear reactions and producing transuranic elements. Also for focussing electrically charged particles such as ions, instead of relativistic electron beams. Also for focussing electrically charged particles and continuous particle beams, instead of pulsed laser beams.
Patent DE-2442831-A1 (DE)
Title: Alkali (bi)chromate and iron oxide pigment prodn. - by alkaline dissoln. of chromiferous material at low carbon dioxide-oxygen ratio
Inventor: HEIMALA SEPPO OLAVI DIPL ING
IPC: C09C1/24
Filed: 1974-09-06
Abstract: In the dissoln. of chromiferous material contng. C and Fe at elevated temp. and pressure in aq. soln. contng. alkali, NH4+ and/or alkaline earth to give alkali chromate and/or bichromate soln. and Fe oxide pigment, the ratio of the partial pressures of CO2 and O2 (PCO2/PO2) is reduced by regulated removal of CO2 and/or introduction of O2. This ratio pref. is between 0.40 and 0.10. The starting material pref. is finely granular ferrochrome. It can be converted to chromite by calcining with Na2CO3 and C at elevated temp. Before or during dissoln., any alkaline earth, B, Al, or Si cpd. can be added which dissolves in the soln. and is then pptd. with the Fe oxide as pigment. The use of the controlled partial pressure ratio accelerates Cr6+ formation and also alloyws regulation of the pigment properties, e.g. the shade and particle size. A lower proportion of CO2 is to be avoided, since this would give rise to an explosion hazard.
Patent DE-2443185-A1 (DE)
Title: Molecular separation e.g. osmosis, reverse osmosis or dialysis - obtaining pressure difference by placing membrane cell under atmospheric pressure
Inventor: HOEHN ALFRED
IPC: B01D17/00
Filed: 1974-09-10
Abstract: Molecular separation of materials is carried out by pressing a contaminated liquid through the pores of a membrane by atmospheric pressure equalisation. Partial pressure is produced by evacuating a pocket above liquid level in the clarified liquid region, while simultaneously removing by suction a quantity of water corresponding to the pressure of the vacuum. Partial pressure may be produced by means of a valve system on one side of the membrane, applying pressure in shock waves.